William w



(Model.) 8

W. W. EASTMAN.

l LAMP BURNER.

No. 281,674. 'Patented July 24, 1883.

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Tins. vmwumagnpber. wnhingtm D,C.

UNITED STATES PATENT l OFFICE.

WTLLIAM wfEAsrMAN, or BROOKLYN, NEWv YORK.

LAMP-BURNER.

SPECIFICATION forming` part of Letters Patent No, 281,674, dated July 24, 1883.

` Application led March 3, 1883. (Model.)

TogaZZ whom, it may concern,.-

Be it knownthat I, WILLIAM NV. EAsTMAN', of Brooklyn, Kings/county, New York, have in-v vented certain Improvements in Lamp-Burnby to facilitate and render absolutely uniform the elevation of the two sides ofthe wick, and to simplify and improve the construction of the burner.

In the drawings, Figure 1 is a sectional elevation of a lamp -burner showing my improvement. Fig. 2 is an inverted plan view.

My invention, which is applicable to burners of different construction, is specially adapted to that class in 'which thewick is folded in U shape and passed in this condition through the tube and burner. Heretofore it has been customary to elevate'doubled wicks by means of two sets of feed-wheels geared together; but that has proved to be objectionable from the fact that the gears would wear, causing lost motion, so that one side of the wick would moveto so much greater an extent than the other as to seriously interfere with .the proper `the spur-wheels.

burning of the lamp. Attempts have been made to overcome this defect by using plain disks or cylinders upon one side, rotating freely and pressing the wick against the same by` milled wheels upon the feed-shaft; but this has proved ineffectual, because the pressure upon the wick squeezes out the oil, so that it leaves the top part of the burner in a dry condition and chars and burns readily. I overcome these objections by using a feed-shaft, a, carrying f spur-wheels b, with spurs of such length that they will penetrate both portions of the wick without any pressure thereon,

4and a counter-shaft, d, rotating freely in its bearings and carrying plain disks e, arranged directly opposite and almost in contact with The spur-wheels and disks are made so thin that but a small portion of the wick is subjected to their action, thereby reducing the pressure upon the wick to a minimum. By this construction both sides of the 5o wick are carried up together, and so nearly at the same rate of speed that no injury results from the difference, whilethis is effected without expressing the Oil. In the aforesaid patent granted to me the spur-wheels acted upon the wick upon opposite sides of the central air-tube, and the latter was spread to a considerable extent at its lower end. In my present construction the central tube, E, 4is made of about uniform thickness throughout, so that the feed-wheels may be placed below the rlower edge thereof, thereby enabling me to act upon the entire wick by one set of wheels acting in unison. rIhis construction facilitates the manufacture and reduces the cost.

Instead of carrying the inlet-tube F to the external shell, as in the aforesaid patent, I out it off at the outer side ofthe shell h, so that the external fiange, t', of the detachable section of the burner will extend down opposite the mouth of the tube and prevent the access of dust and particles, which might votherwise enter and obstruct it.

It will be apparent that the improvements described may be used in connection with 75 lamps having two wicks placed together and in contact with each other, instead of a single folded wick.

I claim- 1. The combination, in a lamp-burner, of a feed-shaft carrying spur-wheels having teeth of such a length as to penetrate without compressingthe wick, and a counter-shaft, d, provided with thin disks arranged opposite the spur-wheels, substantially as set forth.

2. The combination of a burner adapted to employ a folded or doubled wick, a shaft, a, provided with spur-wheels b, and a counter-shaft, d, provided with disks e, arranged so that both portions of the wick shall .be acted upon. by said wheels7 substantially as set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

WILLIAM W. EAS'IMAN.

Witnesses:

JOSEPH FETTUTOH, Y E. L. FORD. 

